This bill removes less-than-lethal projectile devices (e.g., certain TASERs) from regulation under the Gun Control Act. The term less-than-lethal projectile device means a device that (1) is not designed or intended to expel (and may not be readily converted to discharge) commonly used ammunition or projectiles exceeding a velocity of 500 feet per second; (2) is designed and intended to be used in a manner not likely to cause death or serious bodily injury; and (3) does not accept (and cannot be readily modified to accept) an ammunition feeding device. The bill also requires the Bureau of Alcohol, Tobacco, Firearms and Explosives to determine whether a device satisfies the definition of a less-than-lethal projectile device within 90 days of a request.